There's a lot said about how to lose weight. As it turns out, a lot of what's said may not be true.

To sort fact from fiction, a group of doctors and nutritionists researched the medical evidence behind common claims and presented their findings Wednesday in the New England Journal of Medicine.

Beyond academia, however, the doctors and nutritionists also have deep ties to industry, receiving grant support and consulting fees from food, drug, and diet companies, raising questions about how wide a net of inquiry the authors were willing to cast.

Still, here are what the researchers say are the seven myths about obesity:

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